This is an activity about the properties of electromagnets, which is a crucial underpinning for understanding how magnetic fields are generated in nature, in the surface of the Sun, and in the interior of Earth. Learners will create an electromagnet...(View More) by letting an electric current flow through a wire to generate a magnetic field, which is then detected using a compass. This activity requires a thin insulated wire, pencil, battery, compass and paper clips. This is Activity 2 of the Magnetism and Electromagnetism teachers guide.(View Less)

This is a lesson to demonstrate magnetic field lines in 2- and 3-dimensions. In the first activity, learners sprinkle iron filings over a magnet underneath a paper and record their observations. The second activity involves building a 3-D magnetic...(View More) field visualizer using a clear plastic bottle, a cow magnet and iron filings. This is the second lesson in the first session of the "Exploring Magnetism" teacher guide.(View Less)

This activity demonstrates Lenz's Law, which states that an induced electromotive force generates a current that induces a counter magnetic field that opposes the magnetic field generating the current. In the demonstration, an empty aluminum can...(View More) floats on water in a tray, such as a Petri dish. Students spin a magnet just inside the can without touching the can. The can begins to spin. Understanding what happens can be explained in steps: first, the twirling magnet creates an alternating magnetic field. Students can use a nearby compass to observe that the magnetic field is really changing. Second, the changing magnetic field permeates most things around it, including the aluminum can itself. A changing magnetic field will cause an electric current to flow when there is a closed loop of an electrically conducting material. Even though the aluminum can is not magnetic, it is metal and will conduct electricity. So the twirling magnet causes an electrical current to flow in the aluminum can. This is called an "induced current." Third, all electric currents create magnetic fields. So, in essence, the induced electrical current running through the can creates its very own magnetic field, making the aluminum can magnetic. This is activity four of "Exploring Magnetism." The guide includes science background information, student worksheets, glossary and related resources.(View Less)

In this hands-on engineering challenge, learners design, build, and improve a model that allows a moving object to change direction using an invisible force. Mimicking the gravity-assisted travel of the New Horizons spacecraft, learners roll a steel...(View More) ball (spacecraft) past a magnet (magnetic field) to hit a target (Mars) that is off to the side. This resource includes a challenge video, leader notes, and handouts. Two supplemental videos are included: 1) the use of gravity assisted travel by NASA's New Horizons mission and 2) NASA aerospace engineer Victoria Garcia describing how she uses virtual-reality tools to design living and work spaces for astronauts. She also talks about not letting her deafness be a barrier in her life. This challenge is part of Mission: Solar System, NASA and Design Squad® Nation, a series of hands-on activities and videos let kids apply science, technology, engineering, and math (STEM) skills to solve design challenges. Introductory resources include information on running a challenge and introducing the design process, and tips for facilitating open-ended challenges. This resource has been vetted as part of the NGSS@NSTA curated collection.(View Less)

Learners design and build a device that can pass above a surface and detect magnetic fields. This resource includes a challenge video, leader notes, and handouts. Two supplemental videos are included: 1) Measuring Magnetic Fields and 2) NASA flight...(View More) systems engineer Tracy Drain explaining her role on the Juno spacecraft team. This challenge is part of Mission: Solar System, NASA and Design Squad® Nation, a series of hands-on activities and videos let kids apply science, technology, engineering, and math (STEM) skills to solve design challenges. Introductory resources include resources for running a challenge, introducing the design process, and tips for facilitating open-ended challenges. This resource has been vetted as part of the NGSS@NSTA curated collection.(View Less)

Students investigate magnetic fields in two and three dimensions, and compare the magnetic field of a pulsar to that of the Earth and other astronomical objects. This is Activity 3 of the Supernova Educator Guide developed by the XMM-Newton and...(View More) GLAST E/PO programs. The guide features extensive background information, assessment rubrics, student worksheets, extension and transfer activities, and detailed information about physical science and mathematics content standards. Note: In 2008, GLAST was renamed Fermi, for the physicist Enrico Fermi.(View Less)

This iOS app for iPhone, iPad and iTouch, allows families and educators to investigate and learn about the Sun at home, at school, or anywhere. It provides 13 free, easy to use, hands-on activities, plus live images of the Sun from NASA's SDO...(View More) satellite, videos of the Sun, and more. Each activity includes material lists, step-by-step instructions, and detailed explanations. Some of the activities and media pieces are also available on the project website. The activity materials are widely available and inexpensive.(View Less)